Production

In the Adreßbuch für Aachen und Burtscheid 1877 is under " Rothschild & Salomon " following entry - cloth factory (owner Adolph Joseph Rothschild and Gustav Salomon), Procurist Joseph Havenith, Krugenofen 51 - Aachen Friedrichstr. o.Nr. - Under " Salomon Geschwister " following entry - in company Rothschild & Salomon - Aachen Hochstr. 23 .

The merchant and later factory owner Arthur Michaelis, born on 28.09.1859 in Königsberg married on 16.02.1888 in Munich Frieda Michaelis, née Obermeyer (also: Obermaier), daughter of the Munich merchant Hirsch Obermeyer and Sophie Obermeyer, née Marx. The couple had 3 daughters - Theodora, born on 10.10.1890, Elsa, born on 16.01.1892 and Erna, born on 30.11.1896. Arthur Michaelis was the founder of the machine factory A. Michaelis KG, which specialized in the manufacture of laundry and plating machines. His wife Frieda Michaelis was a partner in the machine factory.

The spinning and weaving Bach & Bloch was founded in Mülhausen (Mulhouse) in Alsace.  Helmuth Bloch (born 1893 in Mülhausen) was one of the owners of the textile wholesale " Bach & Bloch ". After the 1st World War, the company was reopened in Augsburg by the sons of the company founders. Other partners were Edmund and Ralph Bach.Helmuth Bloch lived with his family in Augsburg in the Frölichstra;e 14. 1936 Helmuth Bloch emigrated with his family to the USA.